Did you know Britain's railway has its own miniature❓ 🎬 Tim Dunn goes behind the scenes at our test tracks, which mimic the mainline railway on a small scale. All to give you better, more reliable services: 👉 https://www.networkrail.co.uk/stories/innovating-and-developing-at-network-rail/ Thank you to Modelu for helping make this film possible, and to our friends at Milton Keynes Model Railway Society for inviting us in so we could feature your stunning layout. #TechTuesday #RailTech #Innovati